Peter Andrew Elsea, MD
Internal Medicine Physician · Northampton, MA
Peter Andrew Elsea, MD is an internal medicine physician with a practice address in Northampton, Massachusetts, and NPI 1699731182, issued on Apr 24, 2006. Check the license (Massachusetts 159438, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Peter Andrew Elsea
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 159438 MA
Self-reported in NPPES; status is on the state search - Practice location
- 22 Atwood Dr, Northampton, MA 01060
- Phone
- (413) 584-2178
- Enumerated
- Apr 24, 2006
- Record last updated
- Dec 8, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (413) 923-9312
- Medicaid ID
- 0186350 MA
- Medicare enrollment
- Enrolled (PECOS I20070911000589); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 22 Atwood Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Dhruv Jani, DOGeriatric Medicine (Family Medicine) Physician1891355293
- VI Vien Khoo, RDNRegistered Dietitian1326974684
Verify Peter Andrew Elsea in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 159438Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average internal medicine physician in 2024
8,779 Medicare Part D claims for 721 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 268 claims were for opioids.
Most prescribed
- Atorvastatin Calcium583 claims
- Lisinopril419 claims
- Levothyroxine Sodium353 claims
- Gabapentin336 claims
- Omeprazole268 claims
- Amlodipine Besylate232 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Mass General Brigham Medical Group Western Massachusetts IncNorthampton, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peter Andrew Elsea among 6,825 internal medicine physician records in Massachusetts
Peter Andrew Elsea, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1995 · median 2004 among the 4,103 with a school on file
- Record last updated2015 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
21 internal medicine physician records list a practice address in Northampton
They are 21 of the 1,816 NPPES records with a practice address in Northampton, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Northampton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Alpern, MDNorthampton, MA 010601568422608
- Elizabeth Armstrong, M.D.Northampton, MA 010601881626786
- Edward Dean, MDNorthampton, MA 010601376528638
- Tara Dumont, MDNorthampton, MA 010601467515163
- Andrew Hall, M.D.Northampton, MA 010601073593679
- Howard Klein, M.D.Northampton, MA 010601063456325
- Anne McKinnon, MDNorthampton, MA 010601255311452
- James Most, MDNorthampton, MA 010601518982933
Common questions
What is Peter Andrew Elsea, MD's NPI number?
Peter Andrew Elsea, MD's National Provider Identifier (NPI) is 1699731182, issued on Apr 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Peter Andrew Elsea, MD located?
The NPPES record lists a practice address at 22 Atwood Dr, Northampton, MA, 01060. Phone: (413) 584-2178. Providers update this record themselves, so call before visiting.
How can I verify Peter Andrew Elsea, MD's license?
NPPES lists Massachusetts license number 159438, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Peter Andrew Elsea, MD prescribe under Medicare Part D?
In 2024, Peter Andrew Elsea, MD had 8,779 Medicare Part D claims for 721 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.